The main goal of this lab is to see how conductivity can be used to determine the stoichiometric coefficients in a chemical reaction.

Conductivity is directly related to the concentration of ions within a solution (the greater the concentration of ions, or the greater the charge of the ions in a solution, the greater the electrical conductivity will be).  This lab tests the conductivity of the product of a reaction between silver ion and an unknown ion.  By testing various ratios in volume between the two substances, one can see which one completes the reaction best (leaves no ions in excess). Since the substances have the same concentration, the ratio of the volumes is the same as the molar ratio, which is what the lab seeks to find.